patches/eglibc: remove 100-powerpc-private_futex.patch from trunk

100-powerpc-private_futex.patch no longer applies to eglibc trunk.
This patch was submitted upstream in trunk.

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>

 reporter_name="unknown"

 reporter_url="http://iphonelinux.org/index.php/Glibc_toolchain_using_crosstool-NG"

 reporter_comment="An (experimental) toolchain targeting the Apple's iPhone."